Image Rendering

The Author mode and the output transformation process might render the images referenced in an XML document differently, since they use different rendering engines.

Table 1. Supported Image Formats
Image Type	Support	Additional Information
GIF	built-in	Animations not yet supported
JPG, JPEG	built-in	JPEG images with CMYK color profiles are properly rendered only if color profile is inside the image.
PNG	built-in
SVG, SVGZ, WMF	built-in	Rendered using the open-source Apache Batik library which supports SVG 1.1.
BMP	built-in
TIFF	built-in	Rendered using a part of the Java JAI Image library.
EPS	built-in	Renders the preview TIFF image inside the EPS.
AI	built-in	Renders the preview image inside the Adobe Illustrator file.
JPEG 2000, WBMP	plug-in	Renders by installing the Java Advanced Imaging (JAI) Image I/O Tools plug-in.
CGM	plug-in	Renders by installing an additional library.
PDF	plug-in	Renders by installing the Apache PDF Box library.

When an image cannot be rendered, Oxygen XML Editor Author mode displays a warning message that contains the reason why this is happening. Possible causes include the following:

The image is too large. Enable the Show very large images option.
The image format is not supported by default. It is recommended to install the Java Advanced Imaging(JAI) Image I/O Tools plug-in.

Scaling Images

Image dimension and scaling attributes are taken into account when an image is rendered. The following rules apply:

If you specify only the width attribute of an image, the height of the image is proportionally applied.
If you specify only the height attribute of an image, the width of the image is proportionally applied.
If you specify width and height attributes of an image, both of them control the rendered image.
If you want to scale both the width and height of an image proportionally, use the scale attribute.

Note: As a Java application, Oxygen XML Editor uses the Java Advanced Imaging API that provides a pluggable support for new image types. If you have an ImageIO library that supports additional image formats, just copy this library to the [OXYGEN_DIR]/lib directory.